Arlington 448 Plastic Insulating Bushings

Keep wiring safe and installations professional with Arlington Industries 448 Plastic Insulating Bushings. Designed primarily to protect cable jackets and conductors where they pass through metal knockout openings, these insulating bushings prevent chafing and electrical shorts—vital for security, surveillance, monitoring and networking systems. The 3-1/2-inch snap-in design speeds installation and ensures a secure fit in standard conduit openings, while the 105°C temperature rating provides dependable performance in warm enclosures and equipment racks. Molded from durable plastic and finished in gray, these bushings isolate wires from sharp edges and reduce long-term maintenance in camera, access control, and low-voltage cabling runs. Packaged in quantities of 10, the Arlington 448 is ideal for contractors and integrators who need consistent, field-ready parts for commercial and security projects. Made in the US, they integrate seamlessly into cable management strategies across data centers, surveillance installations, and building monitoring systems. Order Arlington 448 bushings today to protect your cabling and simplify conduit passthroughs on your next job.

• Protects cables from chafing and abrasion at conduit knockouts, reducing maintenance and downtime
• Snap-in 3-1/2-inch fit for fast, tool-free installation in standard knockouts
• 105°C temperature rating for reliable performance in warm equipment rooms and data centers
• Durable plastic construction resists wear while isolating conductors from metal edges
• Sold in convenient packs of 10 and made in the US for consistent quality and supply